防止

• We should try to prevent defective parts slipping through .
  我们应该设法防止有毛病从部件漏出去。
• It can be used for devising systems to protect against frost damage .
  它可用来设计防止霜害的方法。
• The crust seals the soil and prevents the evaporation of water .
  这层表皮把土壤封闭，防止水份蒸发。
• It is useful to have checks against arithmetical errors .
  为防止算术计算中的错误，加以验算是有益的。
• She had a plan to stop those black birds from eating her corn .
  她有个计划去防止黑鸟吃掉她的玉蜀黍。
• Those are standard rules devised to keep out criminals .
  这些都是一些必不可少的规定，防止罪犯混进来。
• Arsenocholine prevented perosis but did not promote growth .
  砷胆碱防止了胫骨短粗症，但不能促进生长。
• In criticism , it is essential to guard against subjectivism and arbitrariness .
  批评要防止主观武断。
• Care must also be taken to prevent silage from being overheated .
  另外，还应该注意防止青贮料温度过高。
• You will prevent much bloodshed later if you will do it .
  假如你能这样做，你就能防止以后的许多次流血。